> ## Documentation Index
> Fetch the complete documentation index at: https://docs.contiguity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Check iMessage Availability

> Check if your recipient's phone number supports iMessage

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## OpenAPI

````yaml openapi-conversations GET /availability/imessage/{to}
openapi: 3.0.0
info:
  version: v2026.3.3
  title: Conversations API
servers:
  - url: https://api.contiguity.com/conversations
security: []
paths:
  /availability/imessage/{to}:
    get:
      parameters:
        - schema:
            type: string
            description: Phone number to check. Must be in E.164 format.
            example: '+1234567890'
          required: true
          description: Phone number to check. Must be in E.164 format.
          name: to
          in: path
      responses:
        '200':
          description: Check if a phone number supports iMessage
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: req_xxxxxxxxxxxxxxxx
                  timestamp:
                    type: number
                    example: 1772568052124
                  api_version:
                    type: string
                    example: v2026.3.3
                  object:
                    type: string
                    example: response
                  data:
                    type: object
                    properties:
                      available:
                        type: boolean
                        description: Whether the number supports iMessage.
                        example: true
                    required:
                      - available
                required:
                  - id
                  - timestamp
                  - api_version
                  - object
                  - data
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: err_xxxxxxxxxxxxxxxx
                  timestamp:
                    type: number
                    example: 1772568052124
                  api_version:
                    type: string
                    example: v2026.3.3
                  object:
                    type: string
                    example: error
                  data:
                    type: object
                    properties:
                      error:
                        type: string
                        example: Bad Request
                      status:
                        type: number
                        example: 400
                    required:
                      - error
                      - status
                required:
                  - id
                  - timestamp
                  - api_version
                  - object
                  - data
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: err_xxxxxxxxxxxxxxxx
                  timestamp:
                    type: number
                    example: 1772568052124
                  api_version:
                    type: string
                    example: v2026.3.3
                  object:
                    type: string
                    example: error
                  data:
                    type: object
                    properties:
                      error:
                        type: string
                        example: Unauthorized
                      status:
                        type: number
                        example: 401
                    required:
                      - error
                      - status
                required:
                  - id
                  - timestamp
                  - api_version
                  - object
                  - data
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: err_xxxxxxxxxxxxxxxx
                  timestamp:
                    type: number
                    example: 1772568052124
                  api_version:
                    type: string
                    example: v2026.3.3
                  object:
                    type: string
                    example: error
                  data:
                    type: object
                    properties:
                      error:
                        type: string
                        example: Forbidden
                      status:
                        type: number
                        example: 403
                    required:
                      - error
                      - status
                required:
                  - id
                  - timestamp
                  - api_version
                  - object
                  - data
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: err_xxxxxxxxxxxxxxxx
                  timestamp:
                    type: number
                    example: 1772568052124
                  api_version:
                    type: string
                    example: v2026.3.3
                  object:
                    type: string
                    example: error
                  data:
                    type: object
                    properties:
                      error:
                        type: string
                        example: Internal Server Error
                      status:
                        type: number
                        example: 500
                    required:
                      - error
                      - status
                required:
                  - id
                  - timestamp
                  - api_version
                  - object
                  - data
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````